County profile · official public datasets

Richland County, WI

298 public highway bridges tracked in the FHWA National Bridge Inventory: 54% rated Good, 41.9% Fair, 4% Poor.

298
Public bridges
54%
Good condition
4%
Poor condition

The verdict

According to the Federal Highway Administration's 2024 National Bridge Inventory.

Richland County posts a better-than-median Poor-condition share among rated counties in the state across mid-size county bridge inventory.

Top 28%
lowest Poor share in state
4%
Poor-condition share
298
public highway bridges
1986
avg year built

Poor is an FHWA condition category from the lowest applicable component rating (4 or below), not a live crossing-safety or closure decision. Rankings cover counties with at least five public highway bridges.

Richland County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Richland County ranks #20 of 72 Wisconsin counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 4%). Richland County, Wisconsin contains 298 public highway bridges. Roughly 54% are rated “Good,” 41.9% “Fair,” and 4% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

Total bridges

298

Public highway bridges in Richland County

Good condition

54%

161 of 298 rated 7-9

Fair condition

41.9%

125 of 298 rated 5-6

Poor condition

4%

12 of 298 rated 4 or below

In-state Poor-share rank

#20 of 72

Among Wisconsin counties with 5+ bridges, lower share ranks better

Condition distribution

Share of 298 NBI-tracked bridges by lowest applicable component rating.

Good
54% (161)
Fair
41.9% (125)
Poor
4% (12)

Richland County's Poor-condition bridges carry 7,846 vehicle crossings a day

That is 3.9% of the county's reported daily bridge traffic on 4% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 654 crossings a day against 675 for a Good-condition one. A Poor rating is a condition category, not a closure or a live safety judgement; it means the lowest applicable component rating is 4 or below.

Computed over the 298 of 298 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

20.8% of Richland County's bridges have passed the 50-year mark

62 of the 298 bridges with a recorded construction year were built in 1974 or earlier. Age alone is not a defect: a well-maintained older bridge can rate Good, and 54% of this county's inventory does. Even so, this older cohort is the population from which future Poor ratings are drawn, which is why the age profile below matters alongside the condition split above.

Cutoff derives from the 2024 release year minus a 50-year design life. Source: FHWA National Bridge Inventory, 2024 release.

One structure carries 24.2% of the county's Poor-condition bridge traffic

STH 130-STH 133 over WISCONSIN RIVER 05, built 1932, carries 1,900 vehicles a day, the most of any Poor-rated structure here. The county's Poor-condition exposure is concentrated rather than evenly spread, so the 12-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 7,846 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

When Richland County's bridges were built

298 bridges with a recorded construction year, grouped by decade

bridges

What this shows Construction peaked in the 1990s, when 103 of the county's bridges still in the inventory were built, which is 34.6% of those with a recorded year. That cohort is now 25 to 34 years old in the 2024 inventory. Its average build year (1986) matches the Wisconsin average (1984).

Source FHWA National Bridge Inventory (year built) As of 2024 NBI release

How Richland County compares with Wisconsin's closest counties by inventory size

The 5 Wisconsin counties nearest Richland County in number of bridges, with their condition splits. Its 4% Poor share is the 3rd-lowest of these 6. Its average build year of 1986 against a peer-group mean of 1985 is in line with the group.

Showing the 5 closest of 71 Wisconsin counties eligible for comparison.

Bridge inventory size and condition shares for Richland County and the 5 Wisconsin counties closest to it in inventory size
County Bridges Poor
Barron County 319 5.6%
Rock County 304 3.6%
St. Croix County 298 3%
Richland County (this page) 298 4%
Clark County 296 12.2%
Outagamie County 290 4.1%

Each share is of that county's own total tracked bridges; peers are the counties with 5 or more bridges whose inventory size is closest to Richland County's. Source: FHWA National Bridge Inventory, 2024 release.

Nationwide counties with similar inventory size or average build year

Two NBI-derived peer sets for Richland County, both outside Wisconsin so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside WI (298 bridges here).

Similar average build year

Nearest mean year-built outside WI (1986 here).

Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.

All 298 Good 161 Fair 125 Poor 12

Good-condition bridges (161)

LRD TUCK-A-WAY VAL

Good

Over: E BR MILL CREEK

0.1M E JCT CTH Z, Richland, WI

Built 2001 Load: 37.3 t ADT: 43

CTH II

Good

Over: SIMPSON HOLLOW CREEK

1.2M N JCT CTH I, Richland, WI

Built 2001 Load: 37.3 t ADT: 330

LRD NELSON LANE (D

Good

Over: LITTLE WILLOW CREEK

0.1M S JCT CTH N, Richland, WI

Built 2003 Load: 37.3 t ADT: 17

LRD GRINSELL LANE

Good

Over: MELANCTHON CREEK

0.1M E JCT STH 80, Richland, WI

Built 2003 Load: 37.3 t ADT: 33

CTH TB

Good

Over: ASH CREEK

0.7M E JCT CTH O, Richland, WI

Built 2009 Load: 37.3 t ADT: 298

LRD FISH SCHOOL RD

Good

Over: BR KNAPP CREEK

0.3M E JCT CTH U, Richland, WI

Built 2017 Load: 37.9 t ADT: 20

LRD CORTLAND LN (D

Good

Over: MILL CREEK

0.1M E JCT USH 14, Richland, WI

Built 2010 Load: 38.6 t ADT: 100

LRD HOOSIER CREEK

Good

Over: HOOSIER CREEK

0.1M W JCT STH 80, Richland, WI

Built 1987 Load: 38.9 t ADT: 91

LRD CHERRY VALLEY

Good

Over: W BR PINE RIVER

0.2M W JCT CTH D, Richland, WI

Built 1991 Load: 38.9 t ADT: 90

LRD TWIN BLUFF RD

Good

Over: BR PINE RIVER

0.2M E JCT CTH TB, Richland, WI

Built 1991 Load: 38.9 t ADT: 257

STH 58

Good

Over: TROUT CREEK

0.2M N JCT CTH N, Richland, WI

Built 1996 Load: 38.9 t ADT: 2,800

STH 60

Good

Over: PINE RIVER

0.1M E JCT CTH TB, Richland, WI

Built 1998 Load: 38.9 t ADT: 1,500

LRD BUCKTA HILL RO

Good

Over: LITTLE WILLOW RIVER

0.1M W JCT CTH NN, Richland, WI

Built 1994 Load: 38.9 t ADT: 33

LRD HEIDENREICH LA

Good

Over: PINE RIVER

2.0M W JCT CTH C, Richland, WI

Built 1993 Load: 38.9 t ADT: 20

CTH DD

Good

Over: W BR PINE RIVER

0.3M W JCT CTH D, Richland, WI

Built 1998 Load: 38.9 t ADT: 75

LRD WEITZEL RD

Good

Over: BEAR CREEK

0.1M E JCT STH 130, Richland, WI

Built 1999 Load: 38.9 t ADT: 43

LRD FISH SCHOOL RD

Good

Over: KNAPP CREEK

0.2M E JCT CTH U, Richland, WI

Built 1999 Load: 38.9 t ADT: 17

STH 171

Good

Over: KNAPP CREEK

1.0M W JCT CTH H TO N, Richland, WI

Built 2002 Load: 38.9 t ADT: 350

LRD SHENELL DR

Good

Over: BR MILL CREEK

0.1M N JCT CTH E, Richland, WI

Built 2001 Load: 38.9 t ADT: 17

STH 58

Good

Over: JACQUISH HOLLOW CR

1.0M N JCT CTH N, Richland, WI

Built 2002 Load: 38.9 t ADT: 1,800

LRD SMYTH HOLLOW R

Good

Over: SMITH HOLLOW CREEK

1.5M E JCT STH 58, Richland, WI

Built 2002 Load: 38.9 t ADT: 189

CTH B

Good

Over: BEAR CREEK

CTH B, Richland, WI

Built 2021 Load: 40.2 t ADT: 875

LRD LEMOINE LN (DE

Good

Over: W BR PINE RIVER

0.1M S JCT CTH D, Richland, WI

Built 1994 Load: 40.5 t ADT: 10

CTH B

Good

Over: LITTLE BEAR CREEK

1.1M E JCT STH 130, Richland, WI

Built 1997 Load: 40.5 t ADT: 425

CTH E

Good

Over: MILL CREEK

3.8M N JCT STH 60, Richland, WI

Built 1998 Load: 40.5 t ADT: 440

LRD WEST WILLOW LA

Good

Over: LITTLE WILLOW CREEK

TOWN OF WILLOW, Richland, WI

Built 1997 Load: 40.5 t ADT: 10

CTH BB

Good

Over: MOTHERS RUN CREEK

0.01M N JCT CTH B, Richland, WI

Built 1999 Load: 40.5 t ADT: 470

LRD ANDERSON LANE

Good

Over: LITTLE WILLOW RIVER

0.1M W JCT CTH NN, Richland, WI

Built 2003 Load: 40.5 t ADT: 53

CTH O

Good

Over: BR ASH CREEK

1.8M W JCT CTH OO, Richland, WI

Built 2007 Load: 40.5 t ADT: 466

LRD CTH Z

Good

Over: TRIB TO BR MILL CREEK

1.1M W JCT CTH A, Richland, WI

Built 2003 Load: 40.5 t ADT: 225

LRD PREGAL DR

Good

Over: SMITH HOLLOW CREEK

2.1M E JCT STH 58, Richland, WI

Built 2009 Load: 40.5 t ADT: 20

CTH I

Good

Over: PINE RIVER

0.3 M E JCT STH 80, Richland, WI

Built 2016 Load: 41.1 t ADT: 340

CTH I

Good

Over: GAULT HOLLOW CREEK

1.3M W JCT CTH H, Richland, WI

Built 2010 Load: 41.5 t ADT: 196

LRD SPIRAL RD

Good

Over: LITTLE WILLOW CREEK

0.1M W JCT CTH N, Richland, WI

Built 2019 Load: 41.5 t ADT: 45

LRD CUNNINGHAM LN

Good

Over: PINE RIVER

0.2M E JCT STH 80, Richland, WI

Built 1988 Load: 42.1 t ADT: 10

LRD HOOD HOLLOW LN

Good

Over: MILL CREEK

0.2M E JCT CTH E, Richland, WI

Built 1987 Load: 42.1 t ADT: 20

LRD GARDNERWALL LA

Good

Over: PINE RIVER

0.1M W JCT STH 80, Richland, WI

Built 1989 Load: 42.1 t ADT: 9

LRD MEADOWWOOD LAN

Good

Over: ASH CREEK

0.1M S JCT CTH TB, Richland, WI

Built 1990 Load: 42.1 t ADT: 10

LRD EXCELSIOR RD

Good

Over: KNAPP CREEK

0.4M E JCT CTH F, Richland, WI

Built 1991 Load: 42.1 t ADT: 56

LRD SPRING RD

Good

Over: WEST FORK KNAPPS CREEK

0.1M N JCT CTH S, Richland, WI

Built 1993 Load: 42.1 t ADT: 22

CTH U

Good

Over: JIM TOWN BRANCH

0.9M N JCT STH 171, Richland, WI

Built 1992 Load: 42.1 t ADT: 43

LRD QUARRY HILL DR

Good

Over: MILL CREEK

0.1M E JCT CTH E, Richland, WI

Built 1994 Load: 42.1 t ADT: 90

LRD TWO CREEK DR

Good

Over: TRIB. TO KNAPP CREEK

0.05M N JCT STH 171, Richland, WI

Built 1998 Load: 42.1 t ADT: 108

LRD COPPERNOLL HOL

Good

Over: W BR MILL CREEK

0.1M S JCT USH 14, Richland, WI

Built 2000 Load: 42.1 t ADT: 54

LRD JACKSON DR. (D

Good

Over: FOX HOLLOW CREEK

0.1M E JCT CTH Q, Richland, WI

Built 1998 Load: 42.1 t ADT: 1

STH 80

Good

Over: HOOSIER CREEK

1.1M N JCT STH 193, Richland, WI

Built 1990 Load: 43.7 t ADT: 2,800

CTH AA

Good

Over: PINE RIVER

0.1M W JCT CTH SR, Richland, WI

Built 1994 Load: 43.7 t ADT: 261

STH 58

Good

Over: MCGLYNN CR

0.24 MI N. JCT CTH I, Richland, WI

Built 2005 Load: 43.7 t ADT: 1,100

LRD HIDDEN VALLEY

Good

Over: HORSE CREEK TRIBUTARY

0.3 MI SOUTH JCT CTH A, Richland, WI

Built 2007 Load: 43.7 t ADT: 1

LRD COVERED BRIDGE

Good

Over: HORSE CREEK

0.1M S JCT CTH A, Richland, WI

Built 2019 Load: 44.7 t ADT: 95

Read our methodology - how this data is sourced, computed, and verified.

Related

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.